Migrating from Pushwhoosh

If I have a device base using Pushwhoosh, is there a way I can get the APNS push tokens and GCM tokens programmatically from your systems in order to switch to an internally-developed push delivery system without the devices having to re-request push tokens from their respective OSs?

I see you have a simple migration plan from Urban Airship, leveraging their devices APIs-- is there such a way to move out of Pushwhoosh?